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Finding the Fourth Proportional to 481.65, 722.70 and 250.80

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Solution

The fourth proportional to 481.65, 722.70 and 250.80 is: 376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.65 : 722.70 = 250.80 : x
  2. Step 2: Convert to fraction form
    481.65/722.70 = 250.80/x
  3. Step 3: Cross multiply
    481.65x = 722.70 × 250.80
  4. Step 4: Simplify right side
    481.65x = 181,253.16
  5. Step 5: Solve for x
    x = 181,253.16/481.65
  6. Step 6: Final answer
    x = 376.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.